linux-kernel - Re: Patch "i386: Relocatable kernel support" causes instant reboot

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 21 Dec 2006 08:43:26 +0530
From:	Vivek Goyal <vgoyal@...ibm.com>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andi Kleen <ak@...e.de>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: Patch "i386: Relocatable kernel support" causes instant reboot

On Thu, Dec 21, 2006 at 02:13:54PM +0100, Jean Delvare wrote:
> On Thu, 21 Dec 2006 06:38:14 +0530, Vivek Goyal wrote:
> > On Thu, Dec 21, 2006 at 03:32:33AM -0700, Eric W. Biederman wrote:
> > > Grr.  I guessed the problem was to late in the game it seems the problem
> > > is in setup.S  Before we switch to 32bit mode.
> > >
> > > Ok.  There is almost enough for inference but here is a patch of stops
> > > for setup.S let's see if one of those will stop the reboots.
> > >
> > > I have a strong feeling that we are going to find a tool chain issue,
> > > but I'd like to find where we ware having problems before we declare
> > > that to be the case.
> >
> > Looks like it might be a tool chain issue. I took Jean's config file and
> > built my own kernel and I am able to boot the kernel. But I can't boot
> > his bzImage. I observed the same behaviour as jean is experiencing. It jumps
> > back to BIOS.
> 
> I can only confirm that. I installed a more recent system on the same
> hardware, rebuilt a kernel from the same config file, and now it boots
> OK. So it's not related to the hardware. It has to be a compilation-time
> issue.
> 

Hi Jean,

Looks like you have already trashed your setup. If not, is it possible to
upload the output of "objdump -D arch/i386/boot/setup.o"? This will give
some info regarding what assembler is doing.

Thanks
Vivek
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/